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Forces In Action presentation Aligned to Grade 5 Quarter 1

Forces In Action presentation Aligned to Grade 5 Quarter 1 . Essential Lab 3 Forces In Action (Student) Essential Lab 3 Forces In Action (Teacher). Mary Tweedy Science Curriculum Support Specialist. Forces in Action (Engage).

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Forces In Action presentation Aligned to Grade 5 Quarter 1

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  1. Forces In Action presentationAligned to Grade 5 Quarter 1 Essential Lab 3 Forces In Action (Student)Essential Lab 3 Forces In Action (Teacher) Mary Tweedy Science Curriculum Support Specialist

  2. Forces in Action (Engage) • What will happen when the two objects being held up are dropped? • Were your predictions correct? • Will the same thing happen when any two objects are dropped at the same time? (piece of paper and a toy) • What happened and why? • Will balling up the paper affect how it drops? • Will they land at the same time or different times and why? • How the does the way the second paper fell relate to how a parachute works? How does a parachute work?

  3. A Parachute Drop (Engage) • Let’s observe a sample of one of the small parachutes you will build in today’s lab drop. • If we make a second parachute whose canopy is larger will its larger size affect its drop rate? • Today we will explore the relationship of parachute’s canopy size to its drop rate in our lab.

  4. Forces in Action (Explore) Problem Statement Hypothesis If two parachutes are released at the same time, one with a diameter of 15 cm (smaller) and one with a diameter of 30 cm (larger) then the parachute with the _______ (choose smaller or larger) diameter will drop faster. Does the size of a parachute affect its drop rate? Does a smaller parachute drop at a faster or slower rate than a larger parachute?

  5. Forces in Action (Explore) Materials Variables Test Variable: Outcome Variable: Constant Variables: Plastic garbage bags String (8 pieces 50cm in length) Ruler Stopwatch Paper Clip Tape Scissors Permanent Markers

  6. Procedures: • Make two square parachutes from a garbage bag with the following dimensions: a. The small square parachute should have all sides 15 cm in length. b. The large square parachute should have all sides 30 cm in length. 2. Measure the surface areas of both parachute canopies by multiplying length x width and record on data table. 3. Cut eight pieces of string 30 cm in length for the two parachutes. 4. Attach one 30 cm string using transparent tape to each of the four corners of the small parachute canopy. 5. Bring the 4strings of the small parachute canopy together and tie to a large paperclip (load).

  7. Procedures Continued: 6. Repeat steps 4 and 5 for the large parachute. 7. Determine a good launching site. 8. Drop each parachute one at a time from the same height and time their descents. The timeshould be rounded to the nearest second and recorded in the data table. 9. Repeat step 8 for two more trials. 10. Analyze the data.

  8. (Explore) Group Data Which parachute actually dropped slower in your group’s trial?

  9. (Explain) Class Data How do your results compare to the other group’s trials? What is the relationship between the size and the rate at which a parachute drops?

  10. (Explain/Evaluate) Conclusion • What was investigated? • Was your hypothesis supported by the data? • What were the major findings? • What possible explanations can you offer for your findings?

  11. (Explain/Evaluate) Application • How can the investigation be improved? • What are some possible applications of the experiment? • What questions has your experiment lead you to ask that could be tested in a new an investigation.

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